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Author Integration Question
Bob Hanlon

2007-04-23, 8:11 am

I misplaced the e-mail but I think you asked about this:

expr=1/Sqrt[Sin[u]];

(int1=Integrate[expr,{u,0,Pi/2}])//InputForm

2*EllipticF[Pi/4, 2]

N[int1,15]//Chop//N//InputForm

2.6220575542921196

(int2=Integrate[expr//TrigToExp,{u,0,Pi/2}])//InputForm

(2*Sqrt[Pi]*Gamma[5/4])/Gamma[3/4]

int2//N//InputForm

2.62205755429212


Bob Hanlon


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